In a message dated 12/6/2009 12:57:21 P.M. Central Standard Time, bodhigo@xxxxxxx writes: I read a comment that a Vista 64bit has some compatibility issues with Win 7. on some of the older programs they wont run in 64 bit operating system but most will install as the 32 bit that they are....and then some wont work at all in 64 bit..... the win7 upgrade advisor will let you know right away what will work and what wont work or where problems may be in programs and or parts of yuor system..... I am runing on different computers the 64 bit os and 32 bit onanother plus the different levels such as home,professional,and ultimate on different computers... I also hve one pc setpup as dual boot with xp and win 7 on same drive but two partitions.... running 32 bit since its an older cpu chip... in fact and AMD 2.i gig chicp and Gigabyte mother boards that is all now about 5 years old..... also has only 1 gig of ram... and all works erfectly.... no iissues...... only one on64 bit popped up and that was with other than MS programs that had a flaky desktop icon ... when 64 bit win 7 made a shortcut it had an arrow and was surrounded by a blank box looked like a folder... program icon was seen at edges of folder..... had to make a couple registry changes that dropped arrow and fixed icn settings... now am good to go on all new installs of programs.... I have been mesing with & since like forever when it started and have enjoyed it tremendously... sure beats the heck out of vista..... and lots faster in all respects to xpor vista..... yo me is a great operating system... but.... still dont like IE that much.... and really havent actually found one that to meis effective in way I want it to work... but that's me....... chuck....in ok