Problem with missing docks

Hello, I would like to ask for your help on a glitch I'm having on SH5: When I start a campaign all the docks are missing except for the submarine bunker, it happens in Kiel, Whilemshaven and Brest, but only with mods installed.

The mods I have installed with JSGME are:

Grossdeutscher Rundfunk
MightyFine Crew Mod 1.2.1 Alt Faces
SteelViking's Interior Mod 1.2
Dinamic Enviroment Basemod (realistic version) 2.1
Dinamic Enviroment Brighter Nights 2.1
Dinamic Enviroment Sounds 2.1
Dinamic Enviroment Waves (realistic version) 2.1
NewUIs TDC 6.9 by The Dark Wraith
NewUIs TDC 6.9 jimimadrids map tools
NewUIs TDC 6.9 No Snorkel Exhaust Smoke
NewUIs TDC 6.9 Real Navigation
Open Horizons II full 1.6
IRAI 0.0.30 by The Dark Wraith
IRAI 0.0.30 No hydrophone on surface no aircraft spotting

The specs of my computer are:
OS Windows XP Profesional Service Pack 3
CPU 2x3010 MHz
Main memory 1024MB
DirectX 9.0C
Video Card Nvidia Geforce 9500 GT
Video Memory 512MB

I would appreciate any advice to solve the problem. Thank you.

[Trevally.]

This is a common problem for users with low memory and/or 32bit OS

[quink99]

Trevally said....
This is a common problem for users with low memory and/or 32bit OS.

These are my specs regarding operating system and memory;

MS Windows XP Professional 32-bit SP3

4.00 GB Dual-Channel DDR2 @ 400MHz (5-5-5-18)

I find, after playing for an hour to an hour and a half that while I don't actually crash, per se, the game gets slower and slower until it becomes unplayable. This is particularly true when I go below decks even though I'm not using Steel Viking's interior MOD.

Does anyone have any idea as to how difficult it would be to go from XP 32-bit to Windows 7 64-bit on my current compuiter which is loaded with a lot of stuff plus SH 5?

I understand, if I have it correctly, that using a 32 bit system only allows the use of two of the available 4 GB's of available memory but that there is a program or a way to recapture the remaining 2 GB which are not being used in game at the present time.

If anyone has any comments or suggestions on these matters they would be most appreciated.

Thanks Trevally for the answer, I'll try to get used to it. I also want to thank you for the mods and automations you made wich help me to get the most of the game.

SOLVED: Just save the game and restart the game while in harbor.