Java viewer works...but not ActiveXViewer !?

[Slingky]

i run crystal reports 10 adv dev on a win2k server.
(last service pack and monthly hot fixes are applied)

my report runs ok with both activexviewer and java viewer from the server.

but, on clients, (windows xp), i'm able to see report with java, but with activexviewer, i only get a white blank box.

please help.

p.s. i checked crystalreportviewers10 virtual directory and it's ok... plus i downloaded the asp examples for crystal 10.
so i just put DNS, database name, username and password in the setlogoninfo sample.

Maxime