Erro Eclipse 3.0

Alguem saberia me dizer que erro é esse:

An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x77F64D8A
Function=RtlFreeHeap+0x2A
Library=C:WINNTSystem32
tdll.dll

Current Java thread:
at java.util.zip.ZipFile.getNextEntry(Native Method)
at java.util.zip.ZipFile.access$400(Unknown Source)
at java.util.zip.ZipFile$2.nextElement(Unknown Source)
- locked <0x100748b0> (a java.util.zip.ZipFile)
at org.eclipse.jdt.internal.core.search.indexing.AddJarFileToIndex.execute(AddJarFileToIndex.java:169)
at org.eclipse.jdt.internal.core.search.processing.JobManager.run(JobManager.java:344)
at java.lang.Thread.run(Unknown Source)

Ocorre este erro quando puxo um projeto do CVS.

Muito Obrigado

Ricardo Moura