Why is this still a problem after 5 years? I'm on a Win7-Pro 64-bit PC. Yesterday, I downloaded and installed the latest and greatest Arduino (1.0.6) and immediately smacked into the "Tools Menu Delay" issue.
Googling reveals this has been an issue since 2009, and apparently with every release of Arduino since! Tracking down and using the custom-built rxtxSerial.dll works fine (old fix - haven't yet tried Frederico's fix yet), but it's very disappointing that this has not been fixed by the powers-that-be years ago. Is this the normal mode of operation with Arduino?
It's a pretty cool package regardless... thanks to you users out there, and this forum.