Vista - Excel closing down

Since I had my Vista Small Business reinstalled, Excel is closing down and sometimes restarting again. Sometimes just closing down. After it has reopened automatic I can close without problems. The closing down also often happens upon opening a new Excel page when Excel is open. See attachment. I have complained to the company who did the reinstallation but the claim that it is a Microsoft probloem which has nothing to do with the reinstallation. I have reinstalled Office Enterprise 2007 with no effect. When the problem started I received a message from HP that it was due to selecting the Printer HP Photosmart C5180 as default. I have tried to make another printer default but it has no effect. The computer is a Lenovo Think Pad T-61.

Have you tried running Office setup and "repairing" the installation? You'd also want to try reapplying the Service Pack for Office 2007 (download.microsoft.com).

Did you put on the service packs for Office?

Hi
Thanks for your advice. I have tried to repair. No result. I have then after I received your email tried to reapply Service Pack 1 but as soon as I try to install it it tells me that it is already installed. Can I somehow delete the first installed Service Pack 1?

I also have that problem. I'm using SONY VAIO VGN-CR35S/P, Vista platform with MS Office 2007. Now I can't even open any excel files (.xls or .xlsx) on my computer. The problem has occurred yesterday after I tried to open the .xls attached in the email.

I wish someone could help us!!!!