Iphone Won't Sync to New iTunes Install

[Hawk4x4]

I got a new iPhone 3GS about a two months. I synced it up just fine, loaded up my music library and went app crazy with my credit card.

My PC had an issue the other day, that required a fresh reinstallation of Windows. I reinstalled Windows (7 RC1) and iTunes. I hooked up my iPhone to the PC and authorized the computer with my iTunes account.

Now, for some reason I can't sync anything. I can't add music. I can't add apps. iTunes doesn't even automatically back up my phone anymore. I thought that was what authorization was for? The weirdest part is I can't even PLAY my music through my PC, all my songs are grayed out and unusable. I can re-add my music if I have to, I don't want to, but I can. I don't want to resync my apps because I just bought some today while on my phone, so I don't have those backed up and will lose them if I re-sync the phone. I also don't want to lose any of my other info on the phone, but I'm fearing that I may have to reset the phone to get back full functionality.

Of course, Apple is no help. No documentation on their site for anything similar to my problem and I can't even find a support email address anywhere on their site, which is absurd for a company of its stature.

Has anyone dealt with anything similar to this? Is there a workaround? Thanks in advance.

 

[Insatiable]

Running iTunes 8.2.1 on a 15-inch MacBook Pro. iTunes absolutely refuses to sync video of any kind to my brand-new iPhone 3Gs. Even, video purchased on the phone will copy to iTunes when synced, completely deletes and will not appear on the phone again after the sync is finished. All video is checkmarked, and even playlists full of video will copy to the phone-- without the video. Annoying!