What steps will reproduce the problem?
1. GuildAdmin installed
2. Broker Recount Statistics Installed
3. Mouse over GuildAdmin to display tooltip will not produce any error until mouse over Broker Recount. After this, GuildAdmin throws error when leaving tooltip. Checked my variables and status and they are okay. Seems you hook in somewhere and then get problems handling it, if other addons use LibQTip too.

What is the expected output? What do you see instead?
Should not happen

What version of the product are you using?
Latest

Do you have an error log of what happened?
Message: ...Broker_RecountStats\libs\LibQTip-1.0\LibQTip-1.0.lua:546 bad argument #1 to 'ipairs' (table expected, got nil)
Time: Wed Oct 14 23:15:32 2009
Count: 2
Stack: [string "Interface\FrameXML\BasicControls.xml:<Scrip..."]:18: in function <[string "Interface\FrameXML\BasicControls.xml:<Scrip..."]:4>
(tail call): ?
[C]: ?
[C]: ?
...Broker_RecountStats\libs\LibQTip-1.0\LibQTip-1.0.lua:546 in function `Clear'
...Broker_RecountStats\libs\LibQTip-1.0\LibQTip-1.0.lua:297 in function <...Broker_RecountStats\libs\LibQTip-1.0\LibQTip-1.0.lua:293
...Broker_RecountStats\libs\LibQTip-1.0\LibQTip-1.0.lua:112 in function `Release'
...ace\AddOns\GuildAdmin\privateLibs\GuildAdminCore.lua:1642 in function `ReleaseTooltip'
Interface\AddOns\GuildAdmin\GuildAdmin.lua:154 in function `OnLeave'
Interface\AddOns\Titan\LDBToTitan.lua:286 in function <Interface\AddOns\Titan\LDBToTitan.lua:284

Locals:

Please provide any additional information below.
http://wow.curseforge.com/addons/guildadmin/

I tried to investigate and first supposed it is my error, but inspecting the variables (tooltip), I found that my variable still exists as a table and looks fine. So probably the construct with the timer used in broker recount causes this error.

If I'm not doing any mouse over on broker recount, my addon works fine and vice versa.

Probably it is a library problem - what do you think?