Double-clicked on myself, and got this:
Thread 0 Crashed:
0 libobjc.A.dylib 0x90da86f9 objc_msgSend + 41
1 Adium 0x003d8ecc -[AIContactMenu listObjectsForMenuFromArrayOfListObjects:] + 198 (AIContactMenu.m:193)
2 Adium 0x003d8ddf -[AIContactMenu buildMenuItems] + 445 (AIContactMenu.m:177)
3 Adium 0x003d3d83 -[AIAbstractListObjectMenu menuItems] + 52 (AIAbstractListObjectMenu.m:58)
4 Adium 0x003d8b96 -[AIContactMenu rebuildMenu] + 300 (AIContactMenu.m:138)
5 Adium 0x003d8576 -[AIContactMenu initWithDelegate:forContactsInObject:] + 307 (AIContactMenu.m:59)
6 Adium 0x003d8427 +[AIContactMenu contactMenuWithDelegate:forContactsInObject:] + 78 (AIContactMenu.m:33)
7 com.adiumX.adiumX 0x00024d48 -[AIAccountSelectionView _createContactMenu] + 1417 (AIAccountSelectionView.m:436)
8 com.adiumX.adiumX 0x00022fd1 -[AIAccountSelectionView configureForCurrentChat] + 95 (AIAccountSelectionView.m:184)
9 com.adiumX.adiumX 0x00022f51 -[AIAccountSelectionView setChat:] + 554 (AIAccountSelectionView.m:168)
10 com.adiumX.adiumX 0x0001a77e -[AIMessageViewController _createAccountSelectionView] + 320 (AIMessageViewController.m:709)
11 com.adiumX.adiumX 0x0001a61f -[AIMessageViewController setAccountSelectionMenuVisibleIfNeeded:] + 54 (AIMessageViewController.m:684)
12 com.adiumX.adiumX 0x00018dc3 -[AIMessageViewController chatStatusChanged:] + 151 (AIMessageViewController.m:337)
13 com.adiumX.adiumX 0x0001859a -[AIMessageViewController initForChat:] + 989 (AIMessageViewController.m:161)
14 com.adiumX.adiumX 0x000181a1 +[AIMessageViewController messageDisplayControllerForChat:] + 71 (AIMessageViewController.m:101)
15 com.adiumX.adiumX 0x00015eb8 -[AIDualWindowInterfacePlugin openChat:inContainerWithID:withName:atIndex:] + 147 (AIDualWindowInterfacePlugin.m:93)
16 com.adiumX.adiumX 0x0010a774 -[AIInterfaceController openChat:] + 658 (AIInterfaceController.m:568)
17 com.adiumX.adiumX 0x001162b5 -[AIChatController openChatWithContact:onPreferredAccount:] + 202 (AIChatController.m:247)
18 com.adiumX.adiumX 0x0003d35d -[AIListWindowController performDefaultActionOnSelectedObject:sender:] + 500 (AIListWindowController.m:482)
19 Adium 0x003f701e -[AIAbstractListController performDefaultActionOnSelectedItem:] + 109 (AIAbstractListController.m:258)