Nvidia Geforce GT 520 issues

So my graphics card has been giving me some issues lately.. I am in game (WoW, The Walking Dead game, Starcraft 2, etc.. full screen high graphic capable games) and frequently after a period of time the screen would just go black for a couple seconds and it would sound like the fan on the card is restarting and then the game would load back up.. rarely the game would just crash altogether and it would cause my computer to be unresponsive (not able to ctrl alt delete my way out of it, mouse pointer would be frozen as well forcing my to manually turn off the computer and turn it back on).. the most recent problem has been after the new WoW patch, whenever the screen would go black for the few seconds to reboot where normally it would just reload the screen.. now the whole screen goes black, I can see my task bar and whatever I have running in the background (web browser normally for waiting for queues) but the game program has disappeared even though I can still hear the game sounds and see the game cursor on a black screen. It stays like this with no reload until I control alt delete my way out of the program.. I have completely uninstalled the graphics card and drivers, reinstalled the card and reupdated the drivers.. still to no success. Any help at all would be greatly appreciated.

OS NameMicrosoft® Windows Vista™ Home Premium
Version6.0.6002 Service Pack 2 Build 6002
Other OS DescriptionNot Available
OS ManufacturerMicrosoft Corporation
System NameDAHLIA-PC
System ManufacturerDell Inc.
System ModelInspiron 519
System Typex64-based PC
ProcessorAMD Athlon(tm) 64 X2 Dual Core Processor 5200+, 2700 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/DateDell Inc. 1.0.3, 9/4/2008
SMBIOS Version2.5
Windows DirectoryC:\Windows
System DirectoryC:\Windows\system32
Boot Device\Device\HarddiskVolume1
LocaleUnited States
Hardware Abstraction LayerVersion = "6.0.6002.18005"
Time ZoneEastern Daylight Time
Installed Physical Memory (RAM)4.00 GB
Total Physical Memory4.00 GB
Available Physical Memory2.17 GB
Total Virtual Memory8.22 GB
Available Virtual Memory6.15 GB
Page File Space4.29 GB
Page FileC:\pagefile.sys

NameNVIDIA GeForce GT 520
PNP Device IDPCI\VEN_10DE&DEV_1040&SUBSYS_20293842&REV_A1\4&12091BE0&0&0010
Adapter TypeGeForce GT 520, NVIDIA compatible
Adapter DescriptionNVIDIA GeForce GT 520
Adapter RAM2.00 GB (2,147,155,968 bytes)
Installed Driversnvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver Version8.17.13.0142
INF Fileoem24.inf (Section004 section)
Color PlanesNot Available
Color Table Entries4294967296
Resolution1680 x 1050 x 59 hertz
Bits/Pixel32
Memory Address0xFD000000-0xFE9FFFFF
Memory Address0xF0000000-0xFEBFFFFF
Memory Address0xF8000000-0xF9FFFFFF
I/O Port0x0000D800-0x0000D87F
IRQ ChannelIRQ 18
I/O Port0x000003B0-0x000003BB
I/O Port0x000003C0-0x000003DF
Memory Address0xA0000-0xBFFFF
Driverc:\windows\system32\drivers\nvlddmkm.sys (8.17.13.142, 13.64 MB (14,298,944 bytes), 8/31/2012 11:00 PM)
 
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