Upgraded to 1.133 on 3/6/09 and had the same problem others are reporting. Today went through control panel and removed ver. 1.133, loaded 1.132 and did another upgrade. This time it worked ok. I did notice the file that I removed of ver. 1.133 was 129 MB, the new file that I installed was only 89 MB. Now I haven’t used my machine all winter, and very little last summer, and my files should not have been 40 MB. I thought I’d pass on a little positive about this issue.
Sorry forgot: Vista Ultimate 32 bit service pack 1; 2.8 GHZ Pentium D; 2 G Ram
Looked back on 1.132 and the file size was only 55.7 MB, I'll leave this mystery to the experts
Edit: Well it did work "Twice" then the dreaded gui.exe has stopped working, I will leave 1.132 on my MAC, and use it until this problem is corrected. The PC will also go back to 1.132.