User guide

Matrox Marvel – User Guide 51
6 Click Æ Run , type regedit , then click OK .
7 Under HKEY_LOCAL_MACHINE Æ SOFTWARE , remove all items starting with
“Matrox” or “MGA”.
8 Restart your computer, then install the latest display drivers for your Matrox graphics
card. You may also need to reinstall other Matrox software.
Problem After game for Windows 95/98 starts, monitor doesn’t display properly
(blank screen, rolling or overlapping screen images)
1
Cause If your game uses a low-resolution (640 × 480 and below), full-screen display mode, your
monitor may not support the refresh rate the Matrox driver is using.
1
Solution 1 If the game is still running in full-screen mode, press [Ctrl]+[Alt]+[Del] once for the
Close Program dialog box, and then click the End Task button.
2 Access the Matrox PowerDesk Monitor Settings property sheet (see “Accessing
PowerDesk property sheets”, page 21).
3 Click Select customizations from the Matrox list .
4 From the Matrox monitor list, select the monitor model you’re using. If your monitor
model doesn’t appear in the list, select a monitor that runs at 60 Hz at 640 × 480 (for
example,
Standard Monitor Types Æ Vesa 1024X768 @60Hz Æ Next ). Follow the on-
screen instructions to complete the selection.
Problem Matrox Diagnostic or setup program reports an IRQ problem
(3D and video programs don’t work)
1
Cause Your computer or program may not work well with bus mastering.
1
Solution Disable bus mastering:
(If you want to continue using bus mastering, see the other solutions.)
Windows 95/98 –
1 Access the Matrox PowerDesk Options property sheet (see “Accessing PowerDesk
property sheets”, page 21).
Note: Recent versions of Matrox PowerDesk for Windows 95/98 (5. x and later) store
registry settings under
HKEY_CURRENT_USER Æ SOFTWARE . You r settings under
HKEY_CURRENT_USER are only accessible if you’re logged into Windows with your
user name.
9x9x
9x9x