Jumping mouse cursor

[ngcard]

I've read through the forum and seen various mouse issues, but haven't found a solution to my jumping mouse issue. See link for video below. Does anyone have any pointers? (pun intended)

https://photos.app.goo.gl/XS7sRS7XZF7RnxQP8

Some technical details...
JM ROM
vDriveQL (tried removing from system to rule out - same issue)
SERMouse v3.03
PTR_GEN v2.01
WMAN v2.05
HOT_REXT v2.29
Microsoft Serial Mouse 2.1A - connected to SER2 using Retro Computer Shack SUBD9 to QL BT dongle. Rewired as follows. Close, but no cigar.

Code: Select all

Mouse with            pin name or           QL SER2
SUB D9                function              BT
----------------------------------------------------
2                         TxD                  3
3                         RxD                  2
4                         +12V                 6
5                         GND                  1
7                         +12V                 6

Code: Select all

100 LET dev$='win1_'
110 LET sys$=dev$&'SYS_'
120 LRESPR sys$&'qlib_run_336mod'
130 LRESPR sys$&'turbo_tk_code'
140 LRESPR sys$&'PTR_GEN'
150 LRESPR sys$&'WMAN'
160 LRESPR sys$&'HOT_REXT'
170 REMark LRESPR sys$&'MENU_REXT'
180 LRESPR sys$&'sermouse'
190 NEW

[Cristian]

viewtopic.php?f=2&t=3197&p=33211&hilit=sermouse#p33211

[ngcard]

Problem solved. It was the Microsoft Mouse 2.1A not being completely compatible. I obtained a Microsoft Mouse 2.0A, and that works fine.