T-SQL (SS2K8) :: Errors When Inserting Rows From A Linked Server

I have a script that inserts rows from a linked server. It basically looks like this:

use mydb;
go
insert into my.table (col1, col2, ...)
select col1, col2, ...
from LinkedServer.db.my.table;

The DDL for both tables is identical: 550 columns (de-normalized from a data warehouse), of which 548 are varchar(max). The remaining two are varchar(255). (not my design! but unchangeable at the moment).

Running my query raises an error:

Cannot create a row of size 9948 which is greater than the allowable maximum row size of 8060.
The statement has been terminated.

Now, inserting rows on the table on the LinkedServer has never been an issue. (Since most columns are varchar(max), SQL has the option to store the data off-row.) The data is there, intact and whole. However, when pulling it into my target server using a LinkedServer (4-part naming), I get the error.

Three pairs of eyes have confirmed that the table definitions are identical on both source and target.