Black screen after login, Safe mode OK

All services check out starting up just fine, going through startup programs now.

I'm going to take a wild guess at this point and think my Avast! anti-virus fragged, as even re-enabling the program and service and restarting, the service keeps unchecking itself, but every other service and startup option runs fine. I'll just do a complete uninstall and reboot and then redownload it and see if it works, unless you think there's a better suggestion?

I did multiple restarts while re-enabling everything after checking all the services and startup programs and every time Avast service would be unchecked when I went back into msconfig to look, and upon checking the Avast program itself without the service running it was unable to restart the service from inside the program and appeared to have also lost my registration data, which is what made me suspect it, since without it running, everything else was working just fine. I went ahead and did a reinstall and have been through multiple reboots and everything is working just great so it appears something fragged with it on the power down before the issue arised. Everything's been running well since without any errors and even on shutdowns I haven't been experiencing any slow shutdowns of background programs I was having for a few months before this, so it would appear to have been the cause. All the other services and programs are running fine now and I've been back using the laptop for the last 6 hours or so, everything appears to be well now.

Thanks for the help, I definitely would not have suspected this to be the problem but I'm glad it was as simple as this. I did malware and virus scans afterward just to be sure and came up clean.