Access Reformats My SQL - And Then It No Longer Works!

Situation: I have written a fairly straight forward nested query which aggregates sales & activity data (num_calls, date, etc.) by customer specialty (CODE_ESP_ACC1) in a single query. The SQL I have written to achieve this is as follows:


SELECT Q002.GP, Sum(Q002.Num_Calls) AS Total_Calls
FROM (SELECT Q001.CODE_ESP_ACC1, Count(Q001.ACT_ID) AS [Num_Calls], Iif([Q001].[code_esp_acc1]="MG" or [q001].[code_esp_acc1]="MF",1,0) AS GP
FROM (SELECT [06 Act 2005 Hosp - IM].ACT_ID, [06 Act 2005 Hosp - IM].TER, [06 Act 2005 Hosp - IM].ACC_ID, [11 Physicians with main specialty].CODE_ESP_ACC1, [06 Act 2005 Hosp - IM].DATE
FROM [06 Act 2005 Hosp - IM] LEFT JOIN [11 Physicians with main specialty] ON [06 Act 2005 Hosp - IM].ACC_ID = [11 Physicians with main specialty].ID_ACC
WHERE ((([06 Act 2005 Hosp - IM].POSITION)=1))) AS Q001
GROUP BY q001.code_esp_acc1, Iif([q001].[code_esp_acc1]="MG" Or [code_esp_acc1]="MF",1,0)
HAVING (((Q001.code_esp_acc1) Is Not Null))) AS Q002
GROUP BY Q002.GP;

This works absolutely fine. I can save this query and run it many times without problems. However, if I then re-enter SQL edit view, Access reformats it as follows:


SELECT Q002.GP, Sum(Q002.Num_Calls) AS Total_Calls
FROM [SELECT Q001.CODE_ESP_ACC1, Count(Q001.ACT_ID) AS [Num_Calls], Iif([Q001].[code_esp_acc1]="MG" or [q001].[code_esp_acc1]="MF",1,0) AS GP
FROM (SELECT [06 Act 2005 Hosp - IM].ACT_ID, [06 Act 2005 Hosp - IM].TER, [06 Act 2005 Hosp - IM].ACC_ID, [11 Physicians with main specialty].CODE_ESP_ACC1, [06 Act 2005 Hosp - IM].DATE
FROM [06 Act 2005 Hosp - IM] LEFT JOIN [11 Physicians with main specialty] ON [06 Act 2005 Hosp - IM].ACC_ID = [11 Physicians with main specialty].ID_ACC
WHERE ((([06 Act 2005 Hosp - IM].POSITION)=1))) AS Q001
GROUP BY q001.code_esp_acc1, Iif([q001].[code_esp_acc1]="MG" Or [code_esp_acc1]="MF",1,0)
HAVING (((Q001.code_esp_acc1) Is Not Null))]. AS Q002
GROUP BY Q002.GP;

... and this no longer works (syntax error in FROM statement).

To save you sifting through the SQL, the error is caused by Access replacing the soft brackets () aroung the outermost FROM statement with an object identifier-style hard bracket []. - specifically, the outermost SELECT statement now reads
SELECT Q002.GP, Sum(Q002.Num_Calls) AS Total_Calls
FROM [
instead of

SELECT Q002.GP, Sum(Q002.Num_Calls) AS Total_Calls
FROM (
and the alias for the subquery reads
]. AS Q002
instead of
) AS Q002

Changing the Access alterations back to my original fixes this problem - so the problem is more an annoyance than a disaster. However, I have no idea why Access is doing this to my query, nor how to prevent it from doing so. Does anybody have any experience of this behaviour in Access and any ideas of how to fix it?

Help! Replies appreciated.