I hope this thread is not strictly about uTorrent 2.0.1. If it is, please accept my apologies. I have been having the high memory consumption problems with 2.1 alpha build 18959, up to 1.5GB out of 4GB total. I use Windows 7 x64 Ultimate. The problem happend regularly rendering uTorrent unresponsive to End Process through Task Manager. On a few occasions it caused windows fail to Restart or Shut Down. uTorrent itself tries to send a crash dump everytime windows is re/booted but it always fails to send the report. On a few occasions my PC failed to connect to the internet, troubleshooting suggesting DNS or ISP failures. I am not sure if this was related to utorrent. I have read Firon's comments about malware and antimalware & firewall problems. I am not sure this problem applies to my system. I have avast! and Microsoft Security Essentials, PCTool's Spyware Doctor and SUPERantispyware with Windows 7 Firewall and the D-Link router NAT/Firewall. I do not think they cause any conflicts or have any related bugs. I am now trying [Turn on "Disable Windows caching of disk reads."] as Firon suggested. I hope this will solve the memory and crashing problems. If I need to send the uTorrent crash reports manually, could you please, Firon, tell me how to send them to you reliably.