I have an IBM Thinkpad with XP Pro. It passed all the hardware checks in the
Vista Upgrade Advisor and IBM/Lenovo has upgraded drivers
instructions. I bought a retail version of Vista Home Premium.
IBM/Lenovos upgrade instructions are to do an upgrade but during the install
Vista said I'd need Business or Ultimate to upgrade from XP Pro. I went
ahead and made a fresh install. Afterwards, I couldn't attach to the
Internet. My Ethernet adapter said it was working correctly but there was a
second "Other" Ethernet Controller that didn't have a driver
couldn't find my built in wireless adapter either. After trying
unsuccessfully to install drivers all day I contacted MS support from another
XP machine. It said I wasn't eligible for the 90 day support and they wanted
$60 for an incident report. I suspect it may have been because I was on a
separate machine - since Vista wouldn't connect.
In any event, I spent the rest of the day rebuilding the machine back to XP.
I hate to have wasted the $160 on Vista Home Premium. I may be willing to
go the extra for Ultimate but only if I can pay the difference between the
two. Or I suppose, I can give up, write of the $160 and stay with XP.
Any suggestions would be appreciated. Thanks.