? in splash screen and deleted LOGIN/PASS

I have reinstaller also 10 times but the trouble is always the same:
On splash screen there is a ? and in the menu the string LOGIN and PASSWORD are displayed with L and P (all other character are missing!).
It's not a resita trouble because i have the same problem with english language!

My config:
+- System -----------------------------

Microsoft Windows 98 SE

Total Memory : 261364 KB
Free Memory : 131640 KB

+- SmartFTP ---------------------------

Version : 1.0.980.2
Time Stamp : 2003-12-23 01:56:32

+- Application DLL --------------------

controls.dll : 1.6.980.2
ftpapi.dll : 2.0.980.2
language.dll : 1.0.980.2
reseng.dll : 1.3.980.2
smarthook.dll : 1.0.2.1

+- System DLL -------------------------

unicows.dll : 1.0.4018.0
shell32.dll : 4.72.3812.600
shlwapi.dll : 6.00.2800.1276
comctl32.dll : 5.81
riched20.dll : 5.30.23.1200
schannel.dll : 5.00.1878.13

+- Internet Explorer ------------------

Version : 6.0.2800.1106

+- Winsock ----------------------------

Winsock : 2.2

It seems something is wrong with the unicows layer (unicode support for Win9x).

The best solution is to update your OS.