I've recently been getting 3001 errors on FFXI when zoning. I can't log back in to that character without restarting my laptop. I can log into a mule though. When I do a search for the char I d/c'd on it still shows me as logged in for another 5 minutes or so.

While this isn't a super big deal, it is annoying to have to restart my laptop during events. This happened about a year ago as well, same laptop. I eventually got frustrated and just reformatted, but I'm hoping to avoid that this time.

I've checked event logs, ran avast, malwarebytes, CCleaner, system restore, etc etc. No viruses, malware or anything that looks off.

Another problem that I've assumed is associated with the zone/dc problem is occasionally Firefox stops loading pages. I'm connected to the internet but pages won't load. I can close out of Firefox and restart but it gives me an error saying that the program can't be opened while another instance is running.

I've tried End Tasking firefox.exe from Task Manager and killing the process via command prompt but it stays on the list as running. I also had this problem around the same time I had the zone/dc problem last year. Restarting the laptop fixes the issue temporarily.

Using a Dell XPS M1530 Laptop
Windows Vista Home 32 bit
Intel Core2 Duo T8300 2.4GHz
2GB RAM
140GB HDD
Dell Wireless 1395 WLAN mini card
Nvidia GeForce8600M GT

Recently uninstalled AVG and installed Avast.
Malwarebytes
Zonealarm
Firefox + Noscript
And I don't browse anything too suspicious.

System is about 2 years old and runs great other than this. Any thoughts or suggestions would be awesome.