DM handheld communication manager always crash

[astro49]

This is my scenario:
1. Running on Win7 (32bit)
2. Have been using DM 5, 6.0, 6.01, etc. without any problems. Am now on 6.0.2.44
3. Win7 device manager detects my BB (all of my BBs are detected) when connected to my Dell D420
4. My connection problem started while 6.01 was currently loaded
5. All of BBs get the same "DM comms manager has stopped working" problem
6. Running dual boot on this laptop and I dont have any problem running DM on the win98 partition
7. I have tried uninstalling, downgrading to v5, re-installing v6.01, v6.02 but the connection problem still persists.
8. This is the error message that is always displayed once I a BB is connected to the pc

Problem signature:
Problem Event Name: APPCRASH
Application Name: RIMDeviceManager.exe
Application Version: 6.0.0.26
Application Timestamp: 4da48e30
Fault Module Name: rim_serial.dll
Fault Module Version: 2.2.0.11
Fault Module Timestamp: 4a3ab855
Exception Code: c0000005
Exception Offset: 000076d4
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 13321
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

HELP anyone??

I really would like to avoid a win7 re-install

BTW, I've also uninstalled all programs that require usb/serial connection for my other fones such as HTC and Sony Ericsson and Nokia. Likewise, their USB drivers were uninstalled. Still no luck

[astro49]

Finally resolved the problem above by:
1. Uninstalling DM v6.0.2.44
2. Deleting these files from c:\windows\system32\drivers
-- RimUsb.sys
-- RimSerial.sys
3. Reboot
4. Re-install DM v5.01
5. Run program
6. Connect BB8830, detected! Synched w/ Outlook (contacts and memos), successful!
7. Connect BB9650, detected! Synched w/ Outlook (calendar, tasks, contacts and memos), successful!
8. Connect BB9630, detected! Synched w/ Outlook (calendar, tasks, contacts and memos), successful!

Lucky boy

I need some sleep =)) Thank God its a weekend

[astro49]

Update..

Couldn't sleep. Re-installed DM v6.0.2.44 and all of my BBs are recognized and still can be synched

Woohooo Happy Weekend everyone!!!