ETW: water reflects troubles with HD4870 Peak

[Beeeno]

Hallo boys/girls
does anyone experience troubles about objects water reflection ? During a RTI battle nearby the sea, I've noted the images reflected on the sea from a ship in the sea appeared at a certain distance from the boat. This gap was very big at a big distance view and reduced itself by zooming toward the boat. An analog issue about water reflection I've noted in the seashore zone.
My PC's specs are:
- mobo: ASUS P5Q pro
- cpu: Intel E8400
- GPU: HD4870 512 Mb PEAK
- SDRAM: 2x2Gb SDRAM G.Skill
with Win XP 32 OS and ATI driver ver. 8.582.00. A point to be noted is I've not installed CATALYST SUITE 9.2 because, in the shop I bought my PC at, I've been told it could have been an unnecessary weight for the PC performance without adding benefits to graphic performances or new graphic control not presented in ETW graphic options menu.
Any idea ? I would also appreciate very much advices and suggestions about optimal graphic settings to play the game with hardware specs similar mine.
Thanks in advance and ciao!!

[SubRosa]

Nope, it's not a hardware issue, it's a graphical bug in the game. I have the exact same problem on my pc:

XFX GTX 285
Intel C2D E6750 @ 3.2Ghz
Gigabyte P35 DS3L
Corsair TX750 PSU
4GB Reaper Hpc 1066