SQL server error log file getting huge (>100GB!!)

My SQL server error log file is getting huge and causing my pc to be out of memory. Can someone decipher what is causing the log file to get so large? Here's a portion of the entries in the log file (I can post more if needed) -
Date,Source,Severity,Message 04/25/2012 11:09:39,Server,Unknown,Error: 26038<c/> Severity: 10<c/> State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing<c/> ETW<c/> notifications etc are skipped. 04/25/2012 11:09:39,spid7s,Unknown,Error: 19032<c/> Severity: 10<c/> State: 1. (Params:). The error is printed in terse mode because there was error during formatting. Tracing<c/> ETW<c/> notifications etc are skipped. 04/25/2012 11:09:38,spid7s,Unknown,The current event was not reported to the Windows Events log. Operating system error = (null). You may need to clear the Windows Events log if it is full. 04/25/2012 11:09:38,spid7s,Unkn ...