Lightroom 2.6 update-All palettes on left side of screen gone!

Question

I was just wondering
if anyone else had this same problem with the new lightroom 2.6 update. I installed the
2.6 update and everything
works as it should except for this issue....When you go into the develop module all of the
palettes(navigator/catalog/folders/collections) on the left hand side of the screen are not there. When you go to click on the arrow to make them reappear the entire computer locks up. All you see is the lightroom screen but the mouse and keyboard will not work and the only option is to shutdown and restart. My computer is virus free...the graphics card has been updated. Im running lightroom on a 64 bit windows vista machine with a four core processor. This issue started with the 2.6 update. I even reinstalled the update using the repair function and the same issue is happening. Could this possibly be a corrupted install. Any help would be most helpfull.

Answer 1

To open or close the Bookmarks Sidebar, do one of the following:
*CTRL+B
*ALT+V+E+B
*Press the ALT key or the F10 key to temporarily display the Menu Bar, then click View > Sidebar > Bookmarks
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Not related to your question, but...
You may need to update some plug-ins. Check your plug-ins and update as necessary:
*Plug-in check: https://www-trunk.stage.mozilla.com/en-US/plugincheck/
*Adobe Shockwave for Director Netscape plug-in: [https://support.mozilla.com/en-US/kb/Using%20the%20Shockwave%20plugin%20with%20Firefox#w_installing-shockwave Installing ('''''or Updating''''') the Shockwave plugin with Firefox]
*Adobe PDF Plug-In For Firefox and Netscape: [https://support.mozilla.com/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox#w_installing-and-updating-adobe-reader Installing/Updating Adobe Reader in Firefox]
*Shockwave Flash (Adobe Flash or Flash): [https://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox]
*Next Generation Java Plug-in for Mozilla browsers: [https://support.mozilla.com/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]