Sadly it may be that the "Limited memory" systems like the 1000/2000/3000/4000/5000 are running into problems dealing with all the locals and other data in the guide. So even if you don't get any locals, they are all still streaming in the guide and taking up resources to be read and then ignored?
Unless you are attached to the DD adapter or the UHF of the Model 4000, replacing it with a 301 may be pretty inexpensive (under $100) and get you away from alot of the bugs. My 4000 was starting to drive me crazy (especially when the UHF remote went bad and there was no IR component to use with a Universal Remote) the 301 brought be back to Normal (if you can ever call me Normal
)
Unless you are attached to the DD adapter or the UHF of the Model 4000, replacing it with a 301 may be pretty inexpensive (under $100) and get you away from alot of the bugs. My 4000 was starting to drive me crazy (especially when the UHF remote went bad and there was no IR component to use with a Universal Remote) the 301 brought be back to Normal (if you can ever call me Normal
)
