>>>>I have just increase my RAM from 64m to 128m
>>>>Using NT4 Work Station
>>>>VFP6
>>>>UT Navigator seems to have slowed to a crawl when adding new messages or adding unread messages.
>>>>Cant find the reference, but seem to recall that this is a known problem, but what does one do to fix it.
>>>>In Addition the "System Idle Process" in Task Manager seems to be taking huge amounts of CPU cycling about 2 times a second.. This only seems to occur after using VFP.
>>>>
>>>>Any ideas ?
>>>>TIA
>>>
>>>Are you using a Pentium precessor. The Intel chipset used with these processsors can only cache the 1st 64MB of memory. Since the operating system loads into high memory it runs uncached and the system crawls. If you are using a Pentium Pro or Pwntium II the limits are 4GB or 512MB respectively. The only way to speed up the Pentium is to remove the extra memory and hope you can return it.
>>
>>Thanks Steven,
>>Yes its a Pentium 166
>>No I cant return it. OOPS
>>I Wonder if an AMD K6 will go in that slot ? and whether that would solve it.
>
>See my reply to Steve - it is not a limitation of the processor chip, but the support chipset on the motherboard. Changing the processor will not change the L2 cache behavior.
>
>If the motherboard is based on the 430HX chipset, there may be an open socket that will accept an additional cache memory chip; adding the additional cache chip, called tag RAM, will allow caching of up to 512MB on an HX motherboard. A few HX motherboards use COAST (Cache On A STick) modules; most motherboards that do will either accept a second COAST module or a larger COAST module with the extended tag RAM. You'd need to check the make and model of motherboard to find this out - in addition to Tom's Home Page, Spumador's has a comprehensive list of motherboard and BIOS vendors, and an incredible number of motherboard manuals on-line.
>
>The Pentium and AMD are socketed chips that mount in a ZIF Socket on the motherboard. Most TX chipset motherboards will support 200MHz processors; a few will support 233MHz Pentium MMX (P55C) and AMD K6 processors, but may require a BIOS upgrade to do this. The K6-2 really needs one of the newer chipsets like the Via MVP3.
>
>If you do elect to replace the motherboard, make certain that you purchase a new motherboard that uses the same form factor as the existing board. Older motherboards are AT form factor; the newer ATX form factor boards (this includes virtually all Pentium II motherboards) will not fit properly in cases designed for AT form factor without having to drill new mounting holes for the motherboard, and ATX motherboards use a different power supply connector than the AT form factor boards. Also, make sure that a new motherboard will accept the memory you have now - some of the newer boards will only accept 168 pin SDRAM or EDO DIMMs, so 72 pin SIMMs might not be usable with a newer board.
>
>IMO, it probably is not worth investing more money in upgrades for a 166MHz Pentium at this point. If you replace the motherboard, I'd also replace the processor at the same time.

Thanks Ed,
Looks like a new motherboard.
It seems like only yesterday that Pentium 166 was a great idea, hardware has moved fast in the last couple of years. The supplier will take back that memory if I take a new board. So you have solved my problem. Thanks.