when I 'am in paper space and whant to make the drawing into a PDF it work's for like two seconds and then I get an application error and it say's that it could no read the memory.  How and what will fix my problem any advice will be great I am the only person how has this program and need pdf's so i can send my work to others.

I have had this error before also, what i do is use the standard auto cad plot from dwg to pdf setting. another way around it is to plot to dxf then to pdf or any other standard. A good way to find out if you have a memory shortage problem is to get a Flash drive 4gb or bigger and use the Ready boost function. most of them have it, windows will read that memory and use it.