OK for the last year i had CS2 and felt i had learned enough to buy CS3 witch i did in January. And it worked great till now. Now min you i did not downloaded i have the original software for bouth. and PSP XI as well. Now here is my problem just yesterday i went to use it and it did not turn on i did a registry check and PC and programs checked out OK. So i tried again. and it still didn't turn on. So i contacted adobe. and they gave me a new register key i used it and it worked. but when i turned the PC of and back on it said major registry error. So i turned it back of and on and it said the same. So i contacted adobe again and they said reinstall the CD again. I did so and it says-major registry error again. So i have no clue what to do i have uninstalled the program and reinstalled it. and it still gives me that error so i was wondering if any body has any ideas before i have to back up all my files to DVDs in order to do a full PC restore witch I'm looking at 100 GB of files i have to copy to DVDs witch really stinks any helps i will appreciated.