So I in all my retardedness have not been very successful with troubleshooting this issue with google or search on MATY.   

I have all EPs and SPs.  I have found that since I've added everything beyond OFB (I installed the rest in one big go), I have had problems with my game crashed sporadically whenever I try to use the Build/Deconstruct Walls tool.  The same occurs with fences and stairs.  Sporadically is nice...if I'm not in a top down view, and I don't lay down a wall very quickly, it *will* crash. 

When this occurs I am returned to my desktop with a severe Windows error.  It appears to be the graphics driver or card (but I'm no computer genius).  My resolution is reduced to 800x600 and 16colors.  My only solution is to restart my computer.

I did try removing the downloads folder, it made no discernible difference.

Specs:
Windows XP
Media Center Edition (bleh) w.SP3
2.99 GB RAM
Intel(R) Pentium(R) Dual CPU T2370@ 1.73 GHz
Mobile Intel(R) 965 Express Chipset Family

I have no CD due to the fact I'm using a laptop with no functioning CD drive (broken) and no display (also broken) and no keyboard (missing keys).  The game was installed using some creativity on my husband's part with my old computer's hard drive and our network drive. 
This is a Gateway laptop I got for free from one of my coworkers after the Parkersburg IA tornado in May 2008 ate her house - you know the one that they showed all the videos of eating a house for dinner?  (If you don't, Google it...extremely cool).  He took it apart to make sure the insides were fine (and they were) so we're sort of using it like a tower PC. 

This is the ONLY thing that causes this computer to crash.  I've been using it since July 08

Any suggestions?  If it's just the fact the laptop is a piece, I can accept that but I wanted to make sure I wasn't missing anything.