MP locks up TV tuning post-1st exit + req's reboot post-2nd

[dex Otaku]

Multiple problems which seem to span multiple sub-fora. Mods: please slap me on the wrist if it's inappropriate to put everything here in one post. Perhaps I should be on the beta-testing forum?

General System info:
Athlon XP 2500+ / NForce2 mobo / 512MB DDR3200
2*80GB hdd on separate PCI ATA133 controller / 2 * DVD-RAM [one DVD-R DL] / 1 * 40x CDRW
Asus Videosuite 9520 [Nvidia FX5200 / MV34-based dual-DVI plus VIVO, video in drivers disabled, switching between dual analogue CRTs for work and CRT/TV for this testing, TV as primary display with MP]
M-Audio Revo 7.1 [into Logitech Z680 via SP/DIF and analogue]
AverMedia M150-D TV/FM tuner [OEM card ripped from Gateway box]
Windows XP Pro SP2
Nvidia Purevideo MPEG2 codec v1.02 b196
FFDShow 2006-02-03 [recent revisions have show vastly increased CPU usage here]

Submitted filter info for M150-D a few days ago, Daniel Martin replied "Fixed in latest SVN release" last night.

Tuner-related problems:
* MP generally works OK, but anything to do with the TV tuner is iffy.
* After reboot, first opening of MP gives working TV and FM tuning.
* Upon closing MP the 1st time, everything appears OK, threads close normally.
* Upon opening MP 2nd time, TV and FM tuning is dead.
* Upon closing MP 2nd time, thread locks and cannot be killed [forces reboot]. MP obviously cannot be reloaded at this point.
* Note that at any time in this process [when MP is not running, rather], TV tuning is still accessible through DScaler [which I would use if it supported audio from the M150-D, which it does not]

Multi-display-related problems:
* Accessing the web [such as by getting album info in Music view] causes full-screen display on primary device [TV here for my testing] to reset, MP then draws window the size of primary on secondary display at random location [but within the screen]
* Subsequent re-load forces "basic" mode for no apparent reason

Display-related:
* Visualisations, even if turned off, bring up the play icon at a fixed position which covers menus rather than being in skin's defined position