The first thing to make sure of, with any operating system, is that you are totally up to date with all updates, both critical and non critical. So in Start/Control Panel/System and Maintenance/Windows Update/Change Settings make sure that you have it set to update all components using Microsoft Updates.

Many web pages rely on Java to function properly, but an out of date Java engine can present a security risk. Check your Start/Control Panel/Programs/Uninstall a Program to see if Java is listed and what version it is. If it is a lower version that that mentioned here: Download Free Java Software - Sun Microsystems uninstall it, then download and install the latest from that link. Alter the language if need be.

Webpages also often rely on Flash for their moving content etc. so again go through the same procedure for that. It should be listed as Adobe Flash and/or Shockwave. Check that yours is the latest here: Adobe - Test Adobe Shockwave and Flash Players

You need these to be able to view most web pages so it's important you are up to date with them.

Genes Reunited has an FAQ page and one of them refers to getting blank pages as follows:

When you try to view one of our records or census pages you must make sure of the following:




1). You have Adobe Acrobat installed which you will need to view the information. You can get the correct version here:




http://www.adobe.com/uk/products/acrobat/readstep2.html






2). Please can you check your security settings on your PC? If you go to Tools/Internet Options/security and then select 'default', the setting must be at medium. If it is at high you will only see a white page.





3). Please make sure that you have enough credits. The census page takes 5 credits and the BMD page uses 1 credit per view. Military records use up 3 credits.





Please also be aware that if the site is busy, or your PC runs quite slowly, then the information may take a while to load. You will see a white page as the data is accessed. Depending on the speed of your PC, you must allow a few moments for the page to load.

The general FAQ's are here: Genes Reunited – Family History Help - FAQs

They also state:

Please either select a FAQ from the menu below or enter a search term and click 'search'.
If you cannot find an answer to your question you will be able to contact our dedicated support team who will be able to answer all your questions
The Support Team's working hours are Monday to Friday 8am - 6pm and we will answer all emails within 2 - 3 days.
The Genes Reunited Team

There is also a "Contact Us" button at the bottom of the page.

Well, good luck!

Hello Kaz

this passage from the Genes re-united website may i believe show your issue

If you click on My Family Tree your tree will open in a new window. You must make sure you allow pop-ups. You also need the latest version of Macromedia flash. If you don't have it you can download it from here.

Allowing pop-ups seems to be enabled as you say you see a blank page but if the flash is not available the page will remain blank, you may see a warning bar appear saying that pop-up prevented if you do select the options presented and choose the options to allow pop-ups on this page, for the flash follow the instructions on the link in the quote above

Please whatever you do avoid these online registry boosters / checkers, my experience is that they are a way to make money for the authors and do not help the user at all

First as I do not know the actual software they are using I can only give general advice but from the error you are getting I assume you enter the data into the system then view the tree.

If this is true then it seems that there is an error at the point in the website code noted in the message

Line 46
Char 13
Error 'Tree' is underlined.
Code 0
Url http//www.genesreunited.co.uk

The only thing to do with this sort of error is to report it back to the site itself via their email system - not ideal I know .

The thing that does worry me a little is that you say the tree can be accessed from other machines, which would suggest the fault is with your machines set-up and not the actual site.

Pop-ups.

If you go into Internet explorer and go to Tools then Pop-Up Blocker you should be able to switch off the function.

Try to view the tree again

If this allows you to see the page you can then go back into the tools menu and add the web page address you are on to the list of allowed sites and then switch the blocking back on. (otherwise you may see a lot of ads)