What steps will reproduce the problem? 1. Click the 'Tools' menu

What is the expected output? What do you see instead? Click and display menu. Instead, pauses for ~12s and freezes blinking text input.

What version of the Arduino software are you using? On what operating system? Which Arduino board are you using? 0017, Win v7, 32b, Pro. Latest jre copied to arduino directory--doesn't help. Sanguino! :-)

Please provide any additional information below. Tried compat. mode for XP SP2, same result.

same here. Arduino 0017, Win7 x64, JRE 6u17.

Had same problem with Arduino 0017 and Win XP SP3 - was serial port related in my case. After disabling bluetooth serial ports (no bluetooth link at that time) 'Tools' menu reacted as expected.

Microsoft Vista 32-bit Arduino 0018 "Tools" menu very unresponsive other menus are fine To select something from "Tools" menu one needs to wait a bit; once menu opens it is possible to select serial port and other settings.

Default settings on freshly installed Arduino IDE 0018

I'm getting this, fresh 018 zip on windows xp. Tools doesn't appear for maybe 15 seconds. Makes it very hard to configure

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Please look at Erieds comments on it in this post: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1237179908

Basically you need to replace rxtxserial.dll

It helped disabling the bluetooth connection in my computer

Same issue here using win7 home pro... the replacement library suggested by Erieds worked great.

Please, consider including the fix in the next release.

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I've experienced the same issue with Arduino 1.0 on My Hp probook, running windows 7 pro, with a Broadcom 2070 Bluetooth adapter. When the Adapter is enabled the programming software will freeze for a significant time whenever the "tools" menu is selected. When I disable the Bluetooth adapter the problem goes away.

After applying the fix to rxtxserial.dll linked in comment 6 above there seems to be no further issue. Makes me wonder why if there's been a working fix since 2009 why it was never implemented?

Cheers from end of 2012 and still having the same problem! Using windows 8 x64 and Arduino 1.0.2 Eried's fix apparently applies still, just don't know if there's any complication. Disabling bluetooth works as well.

There is an ongoing fix based on Erieds patch here:

http://arduino.cc/forum/index.php/topic,141797.0.html

if someone can kindly test it, will help us to speedup inclusion in 1.0.4. C

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It's 2015 now, and I am having this problem as well. Windows 8.1, Surface Pro 1st gen, Arduino 1.0.6. Have yet to try the suggested fixes.

rxtxSerial.dll should be replaced with JSSC as of ARDUINO 1.5.6 BETA - 2014.02.20

"* Replaced RXTX library with JSSC (Alexey Sokolov) http://code.google.com/p/java-simple-serial-connector/"

https://github.com/arduino/Arduino/blob/master/build/shared/revisions.txt