If you have an AGP graphic card like me you will need 2 drivers (to get the best image quality)
(this is for either you have nexus-s like me or technotrend)
1st driver needed the tehnotrend driver for vista 32bit
2nd driver the hauppauge driver version 2.18(dvb218c or use technotrend driver 2.18){{this if you dont have pciexpress GFCard}}
installing the techotrend-vista directly wont work (they are not hauppauge)
you go then in control panel (choose classic view if you are lost) device manager then select your unrecognized dvbcard, update drivers manually and select the folder where you EXTRACTED the vista driver.
if it tries to install fast-something(usually the 2nd driver) deny it(its the lan driver which hangs vista) {{{to deny you need the control something of vista running"the thing that nag you whenever you double click on a program to ask for your permission"}}}
if you have pciexpress your picture must work flawlessly
but for agp:
extract the dvb218 drivers and update your graphic card driver manually with them (same as before deny the 2nd pilot-fastinstall to work and u get the usual high quality pic for you discovery channels.
PS: in case u got problems getting the drivers pm me your email and ill try to send u both. {my connection is very slow (adsl 64) so just if you really got stucked

)