Errors and reboots

I have a windows terminal server 2003.  Lately, the clients we allow the public to access here in the library are not connecting to the server.  The message is "cannot connect to the remote access."  When I go to the server, I will notice that it has rebooted. When it comes back up, and I try to log on, I get this stop error:
0x0000008e [0xc0000005, 0xbf8a1afe, 0xba1bdb14, 0x00000000].
I am not sure why this is happening.  Any help is appreciated.