When you wish to perform backtesting, remember to increase this level.

The advantage of using our scripts is that they also organize the data in the.

As the majority of the database maintenance is done over the weekend, we recommend that the maintenance script is run every Monday (as a minimum).

What do I need to do to be able to see them Run the Maintenance as above.

How can I fix this Run the maintenance script (Tools XXX-PremiumData) to refresh the AmiBroker database.

Note: If you dont have another AmiBroker database to use as the default, simply create an empty folder on your machine and give it a name like tempdefault.

If so, copy them across to the new US-PremiumDataWatchLists folder.

How can I fix this In AmiBroker go File Database settings and ensure that the Data source is set to MetaStock data plug-in (and not local database) and Local Data Storage is disabled.

If not, change them, click OK and then run Tools XXX-PremiumData.

How can I fix this Sometimes after upgrading (or reinstalling) AmiBroker, the Tools menu gets reset.

You can manually add the symbol maintenance script to the Tools menu as follows.

What should I do This issue can arise when there is a problem with Internet Explorer or some sort of so-called browser helper object has been installed into Internet Explorer.

You can move your preferred watchlists to the top of the list (be sure to move the items and not copy them as the system cannot handle duplicate entries).

Alternatively, if you just want to reorder the watchlists alphabetically, just delete the index.txt file.

How can I see more Prior to Amibroker v5.60 there was a bug in the MetaStock data plugin.

How do I fix this Firstly, make sure that Internet Explorer is installed in your machine and fully functional, even if you dont use it as your default.

This is normal. Now reboot your PC, start AmiBroker, then try the Tools XXX-PremiumData again.

For 64-bit Windows type: cd c:windowssyswow64 then RegSvr32 scrrun.dll.

Since there are no executable programs in these folders, scanning them is superfluous.

If you increase the In-memory cache size to 20000 (max symbols) that should cover growth in this area for a while.

Perhaps try increasing this to 1000MB (if you have at least 2GB of RAM) and increase further if you have more RAM.

The 64 bit version of AmiBroker allows you to increase this to many Gigabytes - 4000MB is a good choice if you have the RAM to spare.

This will cause the second and subsequent backtestscan to perform at lightning-quick pace.

For example, if your scans only require the last year of trading history, try changing the number of bars to 300.

Amibroker Data