Key presses received double for LiveTV (1 Viewer)

[emphyrio]

My problem is: in Mediaportal TV screen, the buttons for controlling the TV seem to be received twice. Or actually, this is for the LiveTV button and Channel Up & Down. Changing channels with the number keys works fine, other Mediaportal screens are navigating fine too. I'm thinking it's something specifically related to TVserver. I've tried some things and looked around on the forum, but can't find a solution.

Some details from my configuration:

• Mediaportal RC1 with IR Server Suite 1.4.2 RC1 Preview and corresponding MP Control Plugin Update.
• Using MCE Remote 2005, blaster too.
• Hauppauge 150 TV card.
• Windows XP SP2 fully updated.

What I tried:

• Disabled Automatic buttons in Input Service Configuration.
• Changed Button Repeat Delay to 1,000 ms and Button Held Delay to 800 ms.
• Disabled MCE Remote in Mediaportal Configuration - Remotes section.

Can you help me out? I hope I'm just missing something obvious here.