Problem with F1 World Grand Prix '99

[Ares' Lament]

Play Eidos-Lankhor F1 World Grand Prix season '99.
There's problem with filtering bi/tri/ani,
enabling filtering causes black surfaces on the distant area of tracks.

HW:
Matrox G400 16 SH, PII350@466,128 MB SDRAM PC133, Abit BE6-II v1.2, SBLive!, Creative Cobra USB GamePad.

SW:
Win98SE, DX8 4.08.00.0400, PD6.51, MGATweak 1.20

[windigo]

try enabling the z buffer (performance hit i know but what ya gonna do?D)

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MSI K7TPro2 Duron 750@900
256Ram G400DH32mb
Pioneer SCSI 16xDVD
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[Ares' Lament]

Thank you for responding.
Sorry it didn't work.
Uses RegTweak to enable 32bit Zbuffer, but no positive result.
There also problem with EMBM (heat effect).
EMBM (only) works fine in 1154x864 (above 1024x768).