Hi, I downloaded and installed Vista RC1 Build 5600 a few months ago and it has run smoothly for awhile and i've used it frequently in addition to xp on the same computer. recently tho, when i boot to windows vista it will open the user selection screen as normal. when i select the user name i created, it loads to a black screen with the cursor and the Vista splash screen words in the bottom right saying Windows Vista RC1 Build 5600. If i log in under the administrator user name it loads fine but i noticed there was no sound. i was just wondering if anyone else has had this problem or knows any solutions i am running a dell e510 with a pentium 4 3.4 GHz processor with 1 GB ram and a ati radeon x600 video card that worked perfectly previous to this problem. i did some searching and saw that it could be related to the recent release of internet explorer 7 which i installed. so i tried to unistall it with safe mode and with the administrator user name but its not there to remove in add/remove programs. thank u for ur help!